Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1998-04-08
2000-03-28
Oda, Christine K.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324309, 324218, G01V 300
Patent
active
060436514
ABSTRACT:
In a method for the phase correction of nuclear magnetic resonance signals given a pulse sequence wherein image echos are acquired under readout gradients of alternating operational sign, first and third reference echos (S.sub.1.sup.+, S.sub.3.sup.+) are acquired under sub-pulses of the readout gradient with a first polarity and a second reference echo (S.sub.2.sup.-) is acquired under a sub-pulse of the opposite polarity. An interpolation echo (S.sub.2.sup.+) that fictitiously occurs at the echo time of the second reference echo (S.sub.2.sup.-) is formed by interpolation from the first and third reference echo (S.sub.1.sup.+, S.sub.3.sup.+). Correction data are determined by comparing the second reference echo (S.sub.2.sup.-) to the interpolation echo (S.sub.2.sup.+).
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Oda Christine K.
Siemens Aktiengesellschaft
Srivastav Brij B.
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